Spare key holder



FIG. 1 is a perspective view of a spare key holder showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is an inverted rear elevational view thereof;

FIG. 6 is a right end elevational view thereof; and

FIG. 7 is a left end elevational view thereof. 

The ornamental design for a spare key holder, as shown and described. 